Joining a friend's match issue


I see my friend is playing Evolve on PS4. I go down to his name through Online Friends list. I select Join Game. It connects. I see him and one other player. I hear one of them on headset. Less than 5 seconds later I get kicked out while the game tells me the game is full. I tried multiple times and different times with large intervals between and it still didn’t work. Apparently the game can’t count, because 3 is not greater than or equal to 5. I’ll check with my friends to see if he did something with the settings but the fact still remains the game says match is full when it is not.